MESON Chess Problem Database

Problem Display
PID: 80371 (2q1B3/3r4/1P2P3/2kP3R/2N1p3/4N3/1Q6/2RK4 w - - 0 1)

Touw Hian Bwee

Comm., Mansfield MT, 1987

2q1B3/3r4/1P2P3/2kP3R/2N1p3/4N3/1Q6/2RK4

#2

10 + 4

6352 A Collection of Chess Problems by Touw Hian Bwee 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5+
      • 2.Rxd5#
    • 1...Rd6
      • 2.Sd2#
      • 2.Sa3#
      • 2.Sa5#
      • 2.Se5#
    • 1...Ra7
      • 2.d6#
    • 1...Rb7
      • 2.d6#
    • 1...Rc7
      • 2.d6#
    • 1...Re7
      • 2.d6#
    • 1...Rd8
      • 2.d6#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sce3#
      • 1...Rxd5+
        • 2.Sd2#
      • 1...Kxd5
        • 2.Sd4#
      • 1...e3
        • 2.Scxe3#
      • 1...Qa6!
    • 1.Qa3+?
      • 1...Kb5
        • 2.Rb1#
        • 2.Qa5#
      • 1...Kd4!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Qb4#
      • 1...Rxd5+
        • 2.Qd4#
      • 1...Kxc4
        • 2.Se1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(c);CHECK,OGATE,P_SPINR(c),XP(F)::R1(G),XR(c)
    • R(c);N_PINP(F)::R(G)+P(F)
    • R(c);::R(G)+P(F)
  • Tries
    • Try
      • S(D);
      • Threat
        • R(A)+S(E)
      • Vars
        • R(c);CHECK,SBLOCK,XP(F)::R(A)+S(E)
        • K(b);P-FLIGHT,XP(F)::R(G)+S(D)
        • P(a);::R(A)+S(E),XP(a)
      • Refutation
        • Q(d);
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);N_PINP(F),S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAB1(C)
    • Vars
      • R(c);CHECK,P_SPINR(c),XP(F)::QAB1(C)
      • K(b);P-FLIGHT,XS(E)::R(A)+S(D)
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